Expansion lease comb



P 16, 1952 T. E. WATSON EXPANSION LEASE cons FiledMarch 9, 1948 L J K g a w r u A um H llllln r B J H l H u 2 p IN VEN TOR. 77/0/7146 5'. WA 760A ATTOR/Vf).

Patented Sept. 16, 1952 t d.

EXPANSION LEASE COMB Thomas E. Watson, Tewksbury, Mass. Application March 9, 1948, Serial No. 13,892

This invention relates to expansion lease combs and has as its object the provision of a novel and improved comb for guiding the'warps in warping machines, slashers, and other textile machines handling a multiplicity of yarns disposed in parallel relation, and has as its main object the provision of a novel andimproved device which will combine in a single structure both the functions of an expansion comb ofdistributing the yarns uniformly across the width of a beam or roll onto which they are passing, and the functions of a lease comb. of forming a shed .in the yarns to permit the tying of a lease therein.-

Through structures aimed to perform these combined functions have been previously proposed, the drawbacks incident to their construction and use have stood in the way of their adoption, with the'result that where means for the performance of these two functions has been provided in a warper or other related machine, two separate combs have regularly been supplied to perform the respective functions, namely an expansion comb to distribute the warps anda lease comb to form the lease.

To save the expense involved in manufacturing, installing, and maintaining both of these two combsin a warper or related machine, as well as to effect the saving intime resulting from having to thread up only one comb instead of two, I have devised a novel lease comb which is capable of expansion and contraction widthwise of the path ofthe traveling warps, or, from the other viewpoint, an expansion comb which will open a shed in the warps to enable the lease to be taken therein.

Other objects of the invention are to provide a lease comb structure suited for easy substitution for the common comb-sections or bars of the standard zigzag expansion comb,'so as to convert the existing plain expansion comb into' an expansion lease comb, as well as to provide a lease comb for'this and general use as well which will possess the equivalent of eyes serving not only to lift the alternate warps: above the plane of the intermediate warps but also to depress the alternate'warps below such plane and thereby enable a full lease to be taken, and in addition to make the lease comb self-threading in the accepted sense of the term as meaning that the warps are introduced into the eyes by a sliding lateral movement of an intermediate portion of the a length of each warp and without need to draw the warp endwise through the eye. 1 i

To these ends, the novel comb in its preferred form is made up of -dents associated with each 16 Claims. (01. 28-55) other in pairs the individual members of which pairs make contact with each other to form eyes into which the yarns are introduced by merely sliding an intermediate portion of each yarn down between the pair of dents to become trapped in the eye, such eyes being located only in the alternate spaces between dents while the intermediate spaces, those left between successive pairs, are devoid of eyes, the dents being fixed in short bars which together with the dents carried thereby form the respective sections of the comb; these short sections are arranged in zigzag or sta ge ed relation across the width of the warper or other textile machine in usual or any preferred manner, as by mounting them on supports hinged together by their ends with a screw or other means which shifts the individualsections into either sharper or flatter angular relation with each other, or to the yarns, as may be required to distribute the number of ends being wound onto the beam uniformly across the entire length of the beam;

I the leasing action of the comb is produced by relative movement of the comb at right angles to the 7 plane of the sheet of warps traveling therethrough.

An illustrative embodiment of the invention is shown in the accompanying drawings, in which Fig. 1 is a front elevation of a short length, bar, or section of my improved lease comb.

Fig. 2 is an enlarged front elevation of' a pair of the dents of Fig. 1 which cooperate to define;

an eye.

Fig. 3 is a more or less diagrammatic illustration in plan view of ,a conventional zigzag type expansion comb, with comb sectionscorresponding to that shown in Fig. l'in'stalled. I

My improved comb comprises a succession of dents of which the alternate dentsl are straight wires all terminating at the same height, while the intermediate dents 3' are formed of wires of which a portion 5 at the upper end'of each, comprising in the present example substantially A ofthe initial length of each, is bent back into parallel and contiguous relation with the adjoining portion "I of the dent the end of the wire forming the reversely bent portion 5 being turned outward away from the shank portion '1 as indicated at 9 and cut off on a bevel as indicated 2,610,383 o 3 j j the beveled end II and the solder fill I5, which shoulder defines the top extremity of an eye comprising the space H. The bottom I9 of this eye is formed by the top surface of a fill 2I of solder which unites the lower ends of the two dents I, 3, herein for approximately of their length. The dents I, 3, are fixed in a bar 23 in a series having preferably equally spaced relation, the dents in the series being alternately straight dents I and reversely bent dents 3, I The straight dents I extend a short distance above the tops of the bent dents 3, to facilitate entering a warp yarn between these two by bearing the yarn manual-1y. laterally against the protruding top of plain dent I, and then sliding it down past prong I3. Each dent is secured by solder in a hol 22; bored as bar 23, as do the free warps'standing at the left of the bent dents 3, because it is upheld by the surface I9 of fill 2|, nor can it rise to the top of the comb, as can the adjacent free warp, because of its engagement with the surface II of the beveled end of the reversely bent portion 5 of each bent dent.

The manner of taking a lease with the device of the invention will be obvious. In one manner of use, the entire sheet Ofawarps is depressed by a stick in the hands of the. operator,- so that the alternate free warps are forced down to the bars 23 while the intermediate trapped warps extending through the eyes I! are elevated by the surfor its reception through the top suriape of the v rectangular bar 23. The solder fill 2I- extends down to and is united with the top surface of; bar 23.

. The c m secti n of Figi desig ed to e in alle n zi a exhansieh e mhsef usual o exist n types by remo n th comb ct on he eon of rio desi n a d renlaeins hem w he dev e s m a t 'E g- Fi l tra ia rammaticall h v ma n partjsoi such onven nul ex anders, n h h a plur i y porting ba s 25 e e iu tedt ee her a their ends and at mi eh th ihl l zy-e eugs. fash o an equipped withv nuts 2.1"engaged respectively with the oppositely threaded ends of. a screw 29 roate b ad tin c ank I. su t le a g n. a fr me 33 h c ex ends ross he p t the war s n a extile ma h ne As his tr ur is old and well 'lgnown in the" art it" is. deemed unnecessary. to give here a detailed. description Of the construction'and operation, further. than noting that the lazyton s structure may beextended or contracted widthwise. of the textile machine by. rotation of, screw 291 in the proper direction. Thus, in accordance 'with the invention, each section of. comb'such as shown in,

Fig. 1 is applied to the respective supporting bars of one of the two zigzag series of bars 25 shown in Fig. 3 by the usual slotted clips fixed on bars 23 (not shown) and held by rivets passed through holes-3 n t ex r mit es ia 3 a d o gh registering holes. in. theclips, justas usual heretofore in7the case of the'priorfcOmrnQn comb section. With the warpsithreaded through the spacesbetweeneach dent and its adjacent dent,

manipulation of screw 29 shifts the individual comb sections into either sharper orflatter angular relation with; each other as may be required to distribute the number-oi ends being wound onto the beam of the. Warper or othermachine uniformly. across the entire length of the beam, justas is. customary, thus attaining the object of the expansion feature. ofthe. comb.

In threading up. the comb, each end of. warp in turn is grasped at any point in its'length and held or drawn over thefcomb alongside-the protruding top end offa plain dent I, carried side.- wise to make contact with such dent I, and then merelyslid down along and in contactwith such dent I by movement oi? the yarn laterally with respect to the yarns. axis. If the desired yarn is intended to go into the eye IT. at a given location, the yarn is borne against-plain dent. I thereof. in its downward; movement and slid nw d until sna s. as heneint I3 which presses against the side of the contiguous plain t I o acc t f; he r silienc of. hesetwo d n s- Once. it p e point. 1.3.. itis tra ped.

n the We and c n. neitherass dawn aslow faces I'Swith respect to the free warps, thus iorininga shed through which a portion of the lease, cord is. introduced in front of the comb.

Then the sheet of warps is raised by the operators; stick until the said alternate free warps stand near the tops of bent dents 3, while the rapped warps retained i th eyes. I1; by the surfa es II and by euntaetref pe utsl-sfwith plain dents I'aredepressed hymen-surfaces I. I low th p neof the ree warns, hus-forming a shed in the opposite direction threugh whieh a portion of the l ase orals-brought aek, and e e ds of the c rd hen tied to secure-the lease' 1 n a h mahhe ef use, the-entireeomh s mounted with capacity. and. meansfor impart: i g v a .mo ement-thereto, whereby thesame formation of he he'ds s accomp ished, but at;- tained throu h movement oi.- e ni p. and and down 'withrespect ththe. sheet of. warps st d o mo ng he he t 'ei warps with s t. to. a stationary comb as Just -deserib d A y ui b e upre erredarrane pur s ay be emplc y ld; 511 u h. evice I 1 elevati s andfd b w h r spec t theiwa ihg d sclosed in s. Patent No. 2,048,974.1 jofshutn, rant d 5 151 936 d seirin' ion, thereei i deemed unnecessary in the. present: case. beyond stating that the elevating "c n tched after emanner shown in et -so 'Ba'tent N ,60 of Nov. 2.11926... t .a ntaintheecmh mi w e w ents u lr eieva drfa d hil y lewedpos on o th t he war s atelq ee of Co a t e t er the o erthe bo tom IS .ef he. eyes 11 whe themae in is r nn ng-- Th 's; c nsti ueteda ndi employees he single t f h h ve i ue ihbiheeina ngl stat e.- ture the functionsand-ntilitiespt both anexpan; si n. comb and'a lease om 923 5 3.. l shedi without adding any disadvantages-ad t onal to inherentiil. heuse Oi 219 9 efit ese. cusa y dj nc s aha-at hev eefi etine a s s e v ng .n-..t meahd efi threade i g p e ea e-bomb. 4 T e l ymen at the n relieyeriormed by contiguous de t i.se eentemn ated'mr other n ct ns. apart f; ease eeihbs'zandexpane s nc mbs e '-r h e Iv have. illustrated. and described: a cerin o wh ch the invention malt be em bodied, Iamaware, that ma-ny modifications may e ade thereinbra. .y-nerson skille'dfin the art, without departing; from thescopei'ofs the invenl tion expressed in the; claims; lThere fore, I- do not wish to be limited to 'the'particiilar form r V 2. A comb 'for guiding the yarns of warpers and other textile machines having in combination a plurality of comb sections, and means shifting the=sections intoeither sharper or fiatter angularirelation to the yarns, the comb sections comprising-pairs of dents resiliently contacting each other to form eyesfor certain of the yarns and spread apart by the pressure of the yarns as the latter are slid sidewise down between them past their points of mutual contact, and the pairs being spaced apart to leave open spaces for other yarns, whereby upon relative displacement of the comb and the yarns a lease is formed in the yarns.

3.,A comb for guiding the yarns of warpers and other textile machines having in combination a plurality of comb sections hinged together at their ends, and means shifting the sections into either sharper or fiatter angular relation with each other, the comb sections comprising dents providing eyes alternating with open spaces cooperating to form a lease in the yarns, and the dents being free at their top ends to permit threading by sliding the yarns sidewise down between the dents, the eyes being opened for the admission of the yarns by the flexing of the dents by the descending yarns.

4. A lease comb for yarns having in combination a support, and fixed therein a plurality of dents pressing against each other through their inherent resilience to form a series of eyes, the dents being spread apart to open the eyes momentarily by sliding the yarns sidewise down between the dents, the eyes alternating with open spaces throughout the length of the comb to form a lease in the yarns upon relative displacement of the comb and the yarns.

5. A lease comb having in combination a support, and fixed therein pairs of dents resiliently contacting. each other to form eyes for certain of the yarns but spreading apart under pressure of a yarn slid between the dents, the pairs being spaced apart to leave open spaces for other yarns, whereby upon relative displacement of the comb with respect to the yarns a lease is formed in the yarns.

6. A lease comb having in combination a support and a plurality of dents fixed therein in spaced relation, certain of the dents having each a portion of its length bent back into parallel and contiguous relation to an intermediate portion of its length, with the extremity of such bent-back portion turned outwardly'into contact with an adjacent dent.

7. A lease comb having in combination a support and a plurality of dents fixed therein in spaced relation, certain of the dents having each a portion of its length bent back into parallel and contiguous relation to an intermediate portion of its length, with the extremity of such bent-back portion turned outwardly into contact with an adjacent dent, and means bridging the space between each dent having such bent-back portion and the adjacent dent contacted therenation a'plurality "of comb sections, and means shifting the sectionsinto either sharper or fiatby at'a location between the said extremity and the support. f Y 8; Ailease' comb having, in .combination a support, ai'plurality of dents. fixed :;therein in spacedrelation, and means. joining'lpairs, of adjacent v dents together fromthe support to a point remote therefrom, .one: of the dents of each pair having its" free end bent back toward the :support andin contact with'the other dent of'such pair, such latter dentbeingdevoid of bends.

9. A. lease comb having in combination a support, a plurality of dents fixed therein in spacedrelation, and means joining pairs of adjacent. dentstogether fromthe support to a point remote therefrom, one of the dents of each pair having its free 'end bent back toward the support and in contact with the other dent of such pair, and the space between the successive joined pairs being open from the topmost ends of the dents to the support.

10. A lease comb having in combination a support, a plurality of dents fixed therein in spaced relation, means in connection with each alternate dent but omitted on intermediate dents engaging one and only one intermediate dent at two points located in spaced relation in the length of such intermediate dent, the

the extremity of such end portion into contact with an adjacent dent, the space between the said extremity and the adjacent portion of the dent of which it forms a part being filled with adherent material.

13. A lease comb having in combination a support, and a, plurality of dents fixed therein having eyes formed by bending the end portion of one dent reversely toward the support and the extremity of such end portion into contact with an adjacent dent, the space between the said extremity and the adjacent portion of the dent of which it forms a part being filled with adherent material which cooperates with such extremity to create a shoulder defining the top limit of each eye, and having means joining the two mutually contacting dents at a point between and spaced from the point of such contact and the support and defining the bottom limit of each eye.

14. A lease comb having in combination a support, and a plurality of dents fixed therein, the alternate spaces between dents being open from the tops of the dents to the support, and the intermediate spaces being blocked at points above the level of the support by means extending across from one to the other of the dents defining these intermediate spaces, one of such dents having its extremity continuously pressed into contact with the other of such dents by reason of the resilience of the dents to block the escape upwardly of a yarn running through the space between these dents and below the said extremity.

7 15. -A lease comb having in combination a support, and a. plurality of dents fixed therein, the alternate spaces between dents being open from the tops of the dents to the support, and the intermediate spaces being. each. closed by 'e reversely-bent end portion of one dent pressing yleldingly against an adjacent dent. V

16. -A' comb for guiding" the yarns of warpers and otl're'r textile machines having in combination a plurality of c'o'mb sections and. means Number shifting the sections into either sharper or-flatter angular relation to the yarns, the comb sections each comprising a support and dents fixed therein and. *yieldingly contacting each other to define eyes alternating with 'epenspeees 15 between the dents cooperating to form a lease in the yarns, the dents being free at their top ment: spreading the dentsi apart: and opening the: eyes momentarily to admit; the yarns thereto.

THOMAS, E. WATSON.

' REFERENCES GIT-ED The following references are of record in the file o'f'tl ri-s patent;

UNITED STATES PATENTS 2,152,430 Hassold r s. .Mar. 28, 1-939 

